1. Invertebrate Neuroethology: Food Play and Sex
Carolina Rezával, Caroline C.G. Fabre, Stephen F. Goodwin 
Current Biology 
Volume 21, Issue 23, Pages R960-R962 (December 2011)
DOI: /j.cub
Copyright © 2011 Elsevier Ltd Terms and Conditions

2. Figure 1
Proposed model for the perception and integration of olfactory sensory signals that regulate Drosophila male courtship.
Olfactory sensory neurons in the antenna detect odors and send axons to glomeruli in the olfactory center, the antennal lobe, in the brain. VL2a glomerulus receives information from Ir84a-expressing neurons, which respond to odors derived from host food/oviposition substrates. DA1 and VA1 lm glomeruli receive pheromonal information from Or67d-expressing neurons (which respond to the male pheromone 11-cis-vaccenyl acetate, cVA) [11,15] and Or47b-expressing neurons (which respond to unidentified female and male-derived odors) [18,19], respectively. Olfactory information is then propagated through projection neurons to higher brain centers, such as the mushroom body and lateral horn. OR67d/DA1 connectivity was previously shown to target a specific [8] area in the lateral horn associated with pheromone processing [11,20]. Grosjean et al. generated a ‘map’ for the IR84a/VL2a pathway by tracing and registering a collection of brain images obtained from various sources. According to their model, VL2a projection neurons are segregated from projection neurons responding to general food odour pathways but they are anatomically interconnected with the VA1 lm/DA1 pheromone pathways and target a specific area in the lateral horn involved in pheromone processing. Note that only half of the male brain is shown in the schematic.
Current Biology  , R960-R962DOI: ( /j.cub )
Copyright © 2011 Elsevier Ltd Terms and Conditions